DSP typical characteristics:

(a) DSP uses a different structure and general-purpose microprocessor (Harvard architecture),the assembly-line, so that instruction fetch, decode and execute other operations can be overlapped execution of instructions can be completed in a single machine cycle, greatly improves the processing speed.

(b) Fast computing power DSP chips have a dedicated hardware multiplier, one instruction cycle to be completed by one multiplication and one addition, help to improve the operating efficiency of the complex algorithms.

(c) The new DSP mostly set a separate DMA bus controller does not affect or does not influence the DSP processing speed under conditions of parallel data transmission. Provides convenient, for the series and parallel between the DSP numerical control systems is easy toaster-slave processor architecture, the host completes the front control (man-machine interface, management, information display and pre-processor, etc.) from the machine to complete the background control and frequent interpolation operation, servo control, and feedback processing data operations and operations work.

(d) user-friendly design and debugging, many DSP is set in the on-chip JTAG emulation interface and high-level language compiler, you can run the program, interrupts, timing and simulation, and thus greatly facilitate the development of very suited CNC needs.

Therefore, the DSP has a very important value in the high-performance CNC system has wide application prospects in terms of precision servo control system, tool detection compensation and fast servo devices, machine tools and protection.



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